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Important information about this dataset:
This is the version of EN4 described in Good et al. (2013), Journal of Geophysical Research: Oceans, 118, 6704-6716, doi:10.1002/2013JC009067.
A more recent version of the dataset is availble. Unless you have a specific need for this version we advise you to download the latest version.
Please be warned that owing to an error the Argo greylist was not applied in this version of EN4.
These zip files each contain monthly files of the profile data with quality information.
Download objective analyses
These tar files contain objective analyses formed from the profile data for each month.
Help with downloading
Use the links on the left to download the EN4 dataset a year at a time. Available for download are files containing profiles and files containing the objective analyses (you may need to scroll down the page to see the analysis files).
If you require the whole dataset one way to do this is to use wget. To do this download one of the files below (and edit it if not all files are required).
wget -i EN.4.0.1_Profiles_download_list.txt
wget -i EN.4.0.1_Analyses_download_list.txt
Note: the above method was written for Linux systems but should also be applicable to other operating systems with wget installed.
File naming convention
We use a standardised file naming convention:
The sections of the file name are:
The data files are stored in zip files. These can be unpacked using standard utilities such as unzip on Linux systems. The data files themselves are in NetCDF classic format (sometimes referred to as NetCDF3 files). The contents of these are summarised in the links below:
If using the data in a publication, please cite
Good, S. A., M. J. Martin and N. A. Rayner, 2013. EN4: quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates, Journal of Geophysical Research: Oceans, 118, 6704-6716, doi:10.1002/2013JC009067
Where appropriate please also acknowledge the data sources used to create EN4.
These data do not include time varying biases for expendable bathythermographs (XBTs) or mechanical bathythermographs (MBTs). Profiles with these included can be made available on request.
Changes compared to EN.4.0.0 and EN3 v2a
The differences compared to EN3 v2a are described in Good et al. (2013). Major differences are:
The main changes compared to EN.4.0.0 are:
Commercial and media enquiries
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